1850 Counties of Alabama
| County | Description | Area in sq miles | Courts held at | Pop in 1850 |
| Autauga | central part, on north & west side of Coosa river | 774 | Kingston | 15,023 |
| Baldwin | in southwest part, on Gulf of Mexico, Tensaw & Alabama rivers on west and Perdido river on east | 200 | Blakeley | 4,414 |
| Barbour | in south east part, on west side Chattahoochee river | 1,200 | Clayton | 23,632 |
| Benton | on eastern boundary, water by Tallapossa & a branch of Coosa river | 1,060 | Jacksonville | 17,163 |
| Bibb | central part, crossed by Calhawha river, Coosa river on east side | 1,100 | Centreville | 9,969 |
| Blount | northern part, | 960 | Blountsville | 7,367 |
| Butler | southern part | 1,000 | Greenville | 10, 836 |
| Chambers | eastern boundary, Chattahoochee river on east, crossed by Tallapoosa river in NW section | 700 | Lafayette | 23.960 |
| Cherokee | eastern boundary, crossed by Coosa river | not listed | Jefferson | 13,884 |
| Choctaw | western boundary, west side of Tombigbee river | blank | Butler | 8,384 |
| Clarke | northwestern part, between Alabama & Tombigbee rivers | 1200 | Clarksville | 9,786 |
| Coffee | south boundary, crossed by Pea river | not listed | Wellborn | 5,940 |
| Conecuh | south boundary, crossed by Conecuh river | 1531 | Sparta | 9.322 |
| Coosa | central part, east side of Coosa river | 870 | Rockford | 14,533 |
| Covington | southern boundary | 1664 | Montezuma | 3,645 |
| Dale | south boundary, drained by tributaries of Choctawhatchie river | 1064 | Daleville | 6,346 |
| Dallas | southwest part, water by Alabama & Cahawba rivers | 925 | Cahawba | 29,727 |
| De Kalb | northeast part | 1500 | Lebanon | 8,245 |
| Fayette | western boundary | 1250 | Fayetteville | 9,681 |
| Franklin | western boundary, Tennessee river on the north | 648 | Russellville | 19,610 |
| Greene | western part, crossed by Black Warrior river & Tombigbee river on southwest | 836 | Eutaw | 31,441 |
| Henry | southeast corner, Chattahoochee river on east | 975 | Abbeville | 9,019 |
| Jackson | north boundary, crossed by Tennessee river | 975 | Bellefonte | 14,088 |
| Jefferson | northern part | 1040 | Elyton | 8,989 |
| Lauderdale | northwest corner, with Tennessee river on south | 672 | not given | 17,172 |
| Lawrence | northern part, Tennessee river on north | 725 | Moulton | 15,258 |
| Limestone | northern boundary, Tennessee river on south | 575 | Athena | 16,483 |
| Lowndes | towards southern part, Alabama river on north | 1600 | Lowndesborogh | 21,915 |
| Macon | towards southeast part, with Tallapoosa river on northwest | 970 | Tuskegee | 26,898 |
| Madison | northern boundary, Tennessee river on south | 760 | Huntsville | 26,327 |
| Marengo | western part, Tombigbee river on west | 975 | Linden | 27,831 |
| Marion | west boundary | 1144 | Pikeville | 7,833 |
| Marshall | northeastern part, crossed by Tennessee river | 600 | Warrenton | 8,846 |
| Mobile | southwest corner, Gulf of Mexico on south,, Mobile bay & Texas river on east, crossed by Mobile river | 2252 | Mobile | 27,600 |
| Monroe | southern part, Alabama river on west | 980 | Monroeville | 12,013 |
| Montgomery | toward southeast part, Alabama river on northwest, crossed by Tallapoosa river | 900 | Montgomery | 29,711 |
| Morgan | northern part, Tennessee river on north | 720 | Somerville | 10,125 |
| Perry | central part, crossed by Cahawba river | 936 | Marion | 22,285 |
| Pickens | west boundary, crossed by Tombigbee river | 720 | Carrollton | 21,512 |
| Pike | south eastern part | 1100 | Troy | 15,926 |
| Randolph | east boundary, crossed by Tallapoosa river | 875 | McDonald | 11,581 |
| Russell | east boundary, Chattahoochee river on east | 865 | Crawford | 19,548 |
| St Clair | toward northern part, Coosa river on southeast | 840 | Ashville | 6,829 |
| Shelby | central part, Coosa river on east, Catawba on west | 950 | Columbiana | 9,536 |
| Sumter | on west boundary, Tombigbee & Little Tombigbee rivers on east & northeast | 1200 | Livingston | 22,250 |
| Talladega | eastern part, Coosa river on west | 1230 | Talladega | 18,624 |
| Tallapoosa | in east part, crossed by Tallapoosa river | 91 | Dadeville | 15,584 |
| Tuscaloosa | western part, crossed by Black Warrior river | 1350 | Tuscaloosa | 18,056 |
| Walker | toward northwest | 1500 | Jasper | 5,124 |
| Washington | on west boundary, Tombigbee river on east | 840 | Old Washington | 2,713 |
| Wilcox | toward southwest part, crossed by Alabama river | 1200 | Camden | 17,352 |